Autophagy promotes cell and organismal survival by maintaining NAD(H) pools
Autophagy promotes cell and organismal survival by maintaining NAD(H) pools
复制标题
自噬通过维持 NAD(H) 池来促进细胞和生物体的存活
DOI:
10.1101/2020.01.31.928424
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
et al.
中科院分区:
文献类型:
--
作者:
Sedlackova Lucia;Otten Elsje G.;Scialo Filippo;Shapira David;Kataura Tetsushi;et al.
Autophagy is an essential catabolic process that promotes clearance of surplus or damaged intracellular components. As a recycling process, autophagy is also important for the maintenance of cellular metabolites during periods of starvation. Loss of autophagy is sufficient to cause cell death in animal models and is likely to contribute to tissue degeneration in a number of human diseases including neurodegenerative and lysosomal storage disorders–. However, it remains unclear which of the many cellular functions of autophagy primarily underlies its role in cell survival. Here we have identified a critical role of autophagy in the maintenance of nicotinamide adenine dinucleotide (NAD+/NADH) levels. In respiring cells, loss of autophagy caused NAD(H) depletion resulting in mitochondrial membrane depolarisation and cell death. We also found that maintenance of NAD(H) is an evolutionary conserved function of autophagy from yeast to human cells. Importantly, cell death and reduced viability of autophagy-deficient animal models can be partially reversed by supplementation with an NAD(H) precursor. Our study provides a mechanistic link between autophagy and NAD(H) metabolism and suggests that boosting NAD(H) levels may be an effective intervention strategy to prevent cell death and tissue degeneration in human diseases associated with autophagy dysfunction.
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影响因子:
4.2
作者:
PETROVABENEDICT, R;BUNCIC, JR;ROBINSON, BH
通讯作者:
ROBINSON, BH
影响因子:
4.8
作者:
Cannino, Giuseppe;El-Khoury, Riyad;Dufour, Eric
通讯作者:
Dufour, Eric
影响因子:
8.8
作者:
Sarkar S;Carroll B;Buganim Y;Maetzel D;Ng AH;Cassady JP;Cohen MA;Chakraborty S;Wang H;Spooner E;Ploegh H;Gsponer J;Korolchuk VI;Jaenisch R
通讯作者:
Jaenisch R
影响因子:
3.3
作者:
Guan, J;Stromhaug, PE;Klionsky, DJ
通讯作者:
Klionsky, DJ
影响因子:
13.3
作者:
Bampton, Edward T. W.;Goemans, Christoph G.;Tolkovsky, Aviva M.
通讯作者:
Tolkovsky, Aviva M.